FIGURE 5.

Topological roles of operational taxonomic units (OTUs) in the co-occurrence network according to within-module connectivity (Zi = 2.5) and among-module connectivity (Pi = 0.62). Each dot represents an OUT colored by (A) taxonomic groups and (B) categories defined by relative abundance. “All” represents the whole communities. “AT,” “CRAT,” “MT,” and “RT” represent subcommunities of abundant taxa, conditionally rare and abundant taxa, moderate taxa, and rare taxa, respectively. The detailed information of these connectors and module hubs are shown in Supplementary Table S2.